Jika matriks a =
![\left[\begin{array}{ccc}3&2\\0&1\\\end{array}\right]](https://tex.z-dn.net/?f=+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%262%5C%5C0%261%5C%5C%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}3&2\\0&1\\\end{array}\right]")
dan b =![\left[\begin{array}{ccc}1/3&x\\-2/3&1\\\end{array}\right]](https://tex.z-dn.net/?f=+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%2F3%26x%5C%5C-2%2F3%261%5C%5C%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}1/3&x\\-2/3&1\\\end{array}\right]")
Jika B transpose = A invers dengan B transpose matriks B, maka nilai 3x adalah
mohon bantuannya :)
dan b =
mohon bantuannya :)
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[1/3 -2/3] = 1/3 [1 -2]
[x 1 ] [0 3]
lihat ketaksamaan
x = (1/3)(0) = 0
maka 3x = 3(0) = 0